A compiled JSON Schema, containing executable validation rules and a definition registry for reference resolution.
@type t() :: %JSONSchex.Types.Schema{ content_assertion: boolean(), defs: map() | nil, external_loader: (String.t() -> {:ok, map()} | {:error, term()}) | nil, format_assertion: boolean(), raw: map() | nil, rules: [JSONSchex.Types.Rule.t()], source_id: String.t() | nil }